This is gallery of select computer-generated videos and images produced using my volume renderer named "Volumetrics". On Technology page you can get more information about what 'volume renderer' is and how it is used to produce such images.

Video gallery (scroll down the page for stills):

Construction of The Empire State Building (film concept).
Here, Volumetrics 3D clouds were used instead of a matte backdrop, for a subtle yet dramatic effect. Static backdrop would not convey the sense of scale in such a situation; to enhance the sense of scale of The Empire State Building, background clouds had to pan slightly in 3D, with correct parallax.
It is also less time consuming to tweak Volumetrics 3D clouds than to paint new matte.

Commercial/trailer for the George Lopez Show.
In some shots you can see Lopez interacting with clouds - pushing them away, for instance. Volumetrics was used for most of backdrops as well; it is often easier to set up a 3D cloud scene than it is to find and license a photo that fits the scene.

In this commercial, Volumetric 3D clouds renderer produced all the environment apart from airplane.

Production process: Volumetric 3D clouds renderer does not try to do everything on it's own; instead, we choose to make it interoperate with
industry-standard tools such as Autodesk Maya and Adobe After Effects which staff artists are already familiar with. The entire Maya import code was written in under 2 days (we reused existing in-house tool for export); inter-operation with other tools can be achieved in a similar time frame.

In a typical cut, the scene and camera path are set up in Maya, or taken from motion of a real camera (for live actor shots). Then, Volumetric 3D clouds renderer is used to to render the clouds as HDRI slices, sometimes with z-buffer import. The live footage, 3D renders, 3D cloud renders, and matte are then composited in After Effects as usual; this allows for flexibility in adjustment of relative brightness and coloration of scene components.

Still images made with Volumetrics render engine, using new framework:

Older still images made with Volumetrics render engine, using MojoWorld's framework:

As you can see, Volumetrics 3D clouds and surface renderer is very fpexible and can be used in many situations, ranging from skies to nuclear mushroom clouds to impressionist paintings. You can see some more still images created by users in MojoWorld.org gallery or Renderosity gallery (requires login).